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windows_11_26h1

Vendor: microsoft

Actively Exploited 1 CISA KEV List
PoC / Exploits 14 Code Available
Total RCEs 16 Remote Access
Total CVEs 685 Total Indexed
Avg. EPSS 0.65% Exploit Prob.
Latest CVE CVE-2026-50507 Jun 09

Security Vulnerability Index

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7.0 CVSS

Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.

EPSS: 0.20%
7.8 CVSS

Heap-based buffer overflow in Windows Client Side Caching driver (csc.sys) allows an authorized attacker to elevate privileges locally.

EPSS: 0.23%
4.6 CVSS

Use of uninitialized resource in Windows Boot Manager allows an unauthorized attacker to bypass a security feature with a physical attack.

EPSS: 0.39%
7.0 CVSS

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Server Update Service allows an authorized attacker to elevate privileges locally.

EPSS: 0.19%
7.0 CVSS

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.

EPSS: 0.16%
7.8 CVSS

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Push Notifications allows an authorized attacker to elevate privileges locally.

EPSS: 0.15%
7.8 CVSS

Improper input validation in Microsoft PowerShell allows an authorized attacker to elevate privileges locally.

EPSS: 0.23%
6.1 CVSS

Buffer over-read in Windows Kernel Memory allows an authorized attacker to disclose information locally.

EPSS: 2.42%
7.8 CVSS

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.

EPSS: 0.18%
8.8 CVSS

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Push Notifications allows an authorized attacker to elevate privileges locally.

EPSS: 0.18%